import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: lucky
 * Date: 2022-10-21
 * Time: 19:37
 */
@WebServlet("/getParameter")
public class getParameter extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        //预期浏览器传来一个形如这样的请求
        String userId  = req.getParameter("userId");
        String classId = req.getParameter("classId");
        resp.getWriter().write("userId=" + userId + "," + "classId=" + classId);
    }
}
